785-18-2Relevant academic research and scientific papers
Synthesis of uniformly 13C-labeled polycyclic aromatic hydrocarbons
Zhang, Zhenfa,Sangaiah, Ramiah,Gold, Avram,Ball, Louise M.
supporting information; experimental part, p. 5431 - 5435 (2011/09/14)
Convergent synthetic pathways were devised for efficient synthesis of a series of uniformly 13C labeled polycyclic aromatic hydrocarbons de novo from U-13C-benzene and other simple commercially-available 13C-starting compounds. All target products were obtained in excellent yields, including the alternant PAH U-13C-naphthalene, U-13C-phenanthrene, U-13C-anthracene, U- 13C-benz[a]anthracene, U-13C-pyrene and the nonalternant PAH U-13C-fluoranthene.
The thermodynamic properties of 4-methylphenanthrene
Chirico, R. D.,Hossenlopp, I. A.,Nguyen, A.,Steele, W. V.,Gammon, B. E.
, p. 179 - 202 (2007/10/02)
Measurements leading to the calculation of the ideal-gas thermodynamic properties for 4-methylphenanthrene are reported.Thermochemical and thermophysical properties were determined by adiabatic heat-capacity calorimetry, combustion calorimetry, comparative ebulliometry, and inclined-piston manometry.Results were used to calculate entropies, enthalpies, and Gibbs energies of formation for the ideal-gas state at selected temperatures to 500 K.Group-contribution methods involving comparisons for a series of methyl-substituted aromatic molecules were used to demonstrate the consistency of ideal-gas entropies and the enthalpy of formation determined for 4-methylphenanthrene with literature values for related compounds.The results are shown to be in accord with a barrier to methyl rotation from the literature determined using n.m.r. spectroscopy.
